
ISB-TS45H Thermopile Infrared Sensor
The ISB-TS45H is a thermopile infrared sensor housed in a TO-46 metal package, designed for non-contact temperature measurement. It integrates an infrared filter and a thermistor internally, enabling precise temperature detection by sensing the infrared energy emitted from objects. Featuring high sensitivity, high reliability, and fast response, it is widely used in medical (e.g., forehead thermometers, ear thermometers) and industrial temperature measurement applications.
Download PDF DatasheetProduct Features
- ◆ TO-46 Metal Package
- ◆ High Sensitivity
- ◆ Built-in NTC Thermistor for Temperature Compensation
- ◆ Fast Response Time (≤13 ms)
- ◆ Integrated 5μm Long-Wave Pass Filter
- ◆ Wide Operating Temperature Range (-30°C ~ +85°C)
Technical Specification
| Parameter | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Sensitive Area Size | - | - | 0.35 × 0.35 | - | mm² |
| Field of View (FOV) | - | - | 90 | - | ° |
| Thermopile Resistance | Temp=25°C | 80 | 98 | 115 | kΩ |
| Responsivity | Blackbody=500K, 1Hz@25°C | 134 | 164 | 194 | V/W |
| Time Constant | - | - | ≤13 | - | ms |
| NTC Resistance | 25°C | - | 100 ±3% | - | kΩ |
| NTC Beta Value | 25/50°C | - | 3950 ±1% | - | K |
| Operating Temperature | - | -30 | - | +85 | °C |
| Storage Temperature | - | -30 | - | +100 | °C |







